
public class Test2 {
    private void Test2(){

    }

    private Test2() {
    }

    public static void main(String[] args) {
        int num = 2;
        switch (num){
            case 1:
                ++num;
            case 2:
                ++num;
            case 3:
                ++num;
            default:
                ++num;
            break;
        }
        System.out.println(num);
    }
}
